Ice-machine.



No.742,482. PATENTEDOOT.27,1903. 0.0.PALMER.

ICE MACHINE.

APPLICATION. FILED MAY 2. 1899.

H0 MODEL. v

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PATENT 'FFICE.

OASSIUS O. PALMER, OF NEW YORK, N. Y., ASSIGNOR TO RAILWAY 8: STATIONARY REFRIGERATING COMPANY, A CORPORATION OF DELAWARE.

SPEGIFIOATION forming part of Letters Patent No. 742,482, dated October 27, 1903.

Application filed May 2,1899. Serial No. 715,279. (No model.)

To all whom it may concern:

Be it known that I, OASSIUS O. PALMER, a citizen of the United States, and a resident of New York, in the county of New York and State of NewYork, have invented certain new.

and useful Improvements in Ice-Machines, of which the following is a specification.

My inventionconsists in an improvement applicable to the apparatusshownand described in Letters Patent No. 239,666, granted to me April 5, 1881.

In the accompanying drawings, Figure 1 is a vertical section taken transversely through the freezing-cell. Fig. 2 is a vertical section taken parallel with the freezing-cell on the line m m, Fig. 1. Fig. 3 is a horizontal section through the freezing-cell on the line y y, Fig. 2.

A is the apartment in which the freezingcells B are located. The volatile fluid is expanded inside of the cells B. On both sides of each cell 13 are the endless belts O O, to each of which is secured a number of buckets D. The lower end of each belt is so located that as each bucket passes around the lower roller Git will fill itself with water contained in the tank A. Attached to the front of each bucket is a flexible brush or apron e, which presses lightly against the cell as the bucket moves upward. A series of holes or perforationsf are made in the front of each bucket above the flexible brush, so that the Water from the bucket .will run down the flexible brush or apron and pass in a thin film between the apron and cell and rundown the surface of the cell. Each bucket extends entirely across the cell, so that the water will be distributed equally and uniformly onto the freezing-surface.

The parts above referred to correspond with my said patent. In the use of them difflculty was experienced from the fact that the ice would freeze fast to the cell and the cell had to be warmed to make the ice let go of it, which warming of the cell was objectionable for many reasons.

The object of my presentinvention is to provide means whereby the ice may be removed without the necessity of warming the cell.

1 and 2 are a pair of flanged plates constructed so as to fit against opposite sides of each cell. They are constructed of sheet metal, and the ice forms against the outer face of each and between its flanges. The flanged plates 1 and 2 are coupled together by the bails 3 and 4. at opposite ends, which bails engage with adjustable screw-eyes 5 and 6, that extend through the framework 7 and 8. While the freezing is going on, this device serves to hold the flanged plates 1 and 2 snugly against opposite sides of the cell, but

"permits of them being separated and removed from the cell with the ice contained between their flanges when the operation of freezing is complete.

In the use of the contrivance thus far described I have discovered that sufficient moisture is contained within the air between the inner surfaces of the flanged plates 1 and 2 and the surfaces of the cellB, so. that by the condensation and freezing of this moisture the plates 1 and 2 will be frozen fast to the surfaces of the cell 13 and cannot be removed without the aforesaid difficulty of first heating the cell. I have discovered that this can be obviated by introducing between every two of said surfaces a layer of moisture-repelling material. These layers are indicated in the drawings by the numbers 9 and 10. The moisture-repelling substance that I have employed is a lubricating substance (paraffin) and the manner in which I have introduced it between the surfaces has been by placing a thickness of ordinary paraffln or wax paper between the surfaces. I have found that by this means the difficulties already referred to are entirely obviated and that when the freezing operation has been concluded the flanged plates 1 and 2, with their contained ice, may be readily removed from the cell.

I claim 1. In combination with a freezing-cell an ice-holder consisting of a single vertical plate, and a moisture-repelling substance interposed between the adjacent surfaces of said cell and holder, substantially as described.

2. In combination, a freezing-cell, an iceholder freely opening at its lower end, and

a sheet of material saturated with a waterrepelling substance interposed between the adjacent surfaces of said ice-holder and cell, substantially as described.

3. In combination with a freezing-cell, an ice-holder consisting of a trough-shaped plate adapted to be placed against the vertical side of the freezing-cell, and a moisture-repelling substance interposed between the adjacent surfaces of said cell and holder, substantially as described.

4. In combination a freezing-cell, an iceholder consisting of a plate flanged on two opposite sides and adapted to be secured with its bottom against the vertical side of the freezing-cell, and a sheet of material saturated With a water-repelling substance interposed between the adjacent surfaces of said ice-holderand cell, substantially as described.

5. In combination a freezing-cell, two iceholders on opposite sides thereof consisting each of a plate flanged on two opposite sides and adapted to be secured with their bottoms against the vertical side of the freezing-cell, and means for connecting said holders together to secure them in place, substantially as described.

6. In an ice-machine in combination a vertical freezing-cell, two ice-holders each consisting of a plate flanged at two opposite sides to form a trough open at its ends, means for connecting said holders to secure the bottom of said troughs against the vertical sides of the freezing-cell, and means for depositing water in films upon the inner surface of said troughs, substantially as described.

7. In an ice-machine in combination a vertical freezing-cell, a plate flanged at two opposite sides to form a trough open at its ends, means for holding the bottom'of said trough against the vertical sides of the freezing-cell, a layer of material between the plate and cell non-absorbent of moisture and means for depositing water in films on the inner surfaces of said trough, substantially as described.

CASSIUS C. PALMER.

\Vitnesses:

O. E. ANDERSON, FRED S. KEMPER. 

